International Journal of Photoenergy / 2012 / Article / Fig 2

Research Article

Improvement of Power Efficiency in Phosphorescent White Organic Light-Emitting Diodes Using p-Doped Hole Transport Layer

Figure 2

(a) Current density-voltage ( - ) characteristics of the hole-only devices with different MoO3 concentrations (solid line: without MoO3 (5 nm) layer in both electrodes; dashed line: with MoO3 (5 nm) layer in both electrodes); (b) electrical conductivities of MoO3-doped TAPC films with different doping concentrations.

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